Botryoidal Agate with Hematite & Goethite

Lustrous botryoidal agate cluster with hematite & goethite.

Size: 80 x 50 x 40 mm. 188 grams

From Cubuk, Ankara Province, Turkey

Botryoidal agate is a type of agate that has a rounded, grape-like appearance. It is formed when silica-rich water fills cavities in rocks and deposits layers of chalcedony, a microcrystalline variety of quartz. The botryoidal shape is created by the growth of tiny spherical crystals on the surface of the chalcedony. Botryoidal agate can have various colors and patterns, depending on the impurities and minerals present in the water. Some common colors are blue, green, purple, red, and brown. Botryoidal agate is valued for its unique and attractive appearance, and is often used as a gemstone or an ornamental stone.